Migration of hydrogen ions in SrCeO3 studied by ERD analysis

T. Arai, A. Kunimatsu, K. Takahiro, S. Nagata, S. Yamaguchi, Y. Akiyama, N. Sata, M. Ishigame

研究成果: Conference article査読

10 被引用数 (Scopus)

抄録

The migration of hydrogen ions dissolved in SrCeO3 induced by an applied electric potential has been studied over the temperature range from 25 to 200 °C. It was found that the hydrogen ions migrated towards the cathode, and they were trapped there when the cathode material had a good ability to getter the hydrogen. The amounts of hydrogen retained in the cathode could be determined by the ERDA technique using a high-energy 4He beam. In order to estimate the proton transport number, defined as the ratio of the protonic conductivity to the total electric conductivity, we measured the amount of hydrogen retained in the cathode as a function of electric charge number through the specimen. The protonic conductivity and the proton diffusion coefficient were evaluated using the proton transport number and proton concentration in the specimen.

本文言語English
ページ(範囲)263-270
ページ数8
ジャーナルSolid State Ionics
121
1
DOI
出版ステータスPublished - 1999 6
イベントProceedings of the 1997 11th International Conference on Solid State Ionics, SSI-97 - Honolulu, HI, USA
継続期間: 1997 11 161997 11 21

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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